Gregory Nowak wrote:
tilt! wrote:
> > Hello,
> >
> > subject says it all.
> >
> > Are there currently ongoing efforts to have that?
> >
> > If no, I will start one, if yes, I want to join it.
>
> How about alsa/dmix? Some folks here have mentioned oss4 before, but I
> haven't used that myself.
Regarding dmix:
A very interesting and potentially extremely useful aspect
of this plugin is using it combined with the default plugin
name [now default behavior IIUC.] In theory this means all
applications that have native ALSA support will share the
sound device. In practice not many applications are able to
take advantage of this functionality yet.
source:
http://www.alsa-project.org/main/index.php/Asoundrc
Dmix is enabled by default for soundcards which do not
support hardware mixing. Dmix is not enabled by default for
digital output (S/PDIF) and will require the configuration
snippet below....
source:
https://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture
There is a limitation, is that the app(s) have to access the
soundcard via named PCM device:
ecasound -i test.wav -o alsa,default # multiple invocations okay
Direct access to soundcard doesn't get the dmix plugin, so
only one app has access at any given time.
ecasound -i test.wav -o alsa,hw:0,0 # exclusive access required
What dmix doesn't do (and pulseaudio does) is provide a
separate volume control for each application.
cheers,
Joel
> Greg
>
>
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Joel Roth